Crusta

·noun A crust or shell.

II. Crusta ·noun A gem engraved, or a plate embossed in low relief, for inlaying a vase or other object.

crusta
crusta, ae, f. [cf. crudus], the hard surface of a body, the rind, shell, crust, bark, etc. I In g...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
crusta
crūsta ae, f CRV-, a hard surface, rind, shell, crust, bark : fluminis, a crust of ice , V.— Inla...

An Elementary Latin Dictionary